Investigators searching for a man they say shot and killed four people at a Montana bar Friday morning have located the pickup truck he fled in, but the suspect — believed to be armed and dangerous — remains on the loose,

The search for the suspect, identified as Michael Paul Brown, continued into the weekend. Authorities have warned that he is armed and dangerous.

Montana Division of Criminal Investigation administrator Lee Johnson says 45-year-old Michael Paul Brown fled The Owl Bar after the Friday shooting in the small town of Anaconda.